Did the full size 1911 ever come with a 14k nib? Also, did the M come with a 21k nib?

If I'm not mistaken, the answers are:
Did the full size 1911 ever come with a 14k nib? No
Did the M occasionally come with a 21k nib? Yes

Thanks!
BTW: the sailor website mentions a large size and a standard but no M. Is the M a US term and everyone else calls it the "regular"?

Also, hows the international different from the classic?

Here is a useful post:

I like the cut of your nib, Sailor!

Hans-Peter